We have a problem with emails not sent when used for maven2 projects.
Emails are not sent to the committers when changes are done in modules which
breaks the build. I am almost 100% sure this worked a couple of months ago.

It is possible to reproduce by creating a simple structure:

TestHudson/
pom.xml (which have <modules><module>TestHudson-sub</module></modules>, for us
we have a parent here which is outside this structure)
TestHudson-sub/
pom.xml (type = jar for example, has a parent which is not TestHudson)
src/main/java/
TestHudson.java (which will contain errors)

Hudson has in this case only one job setup with email notification where I have
one address in the "Recipients" field and have checked "Send separate e-mails to
individuals who broke the build" checked.
One thing to note is when the build is broken and I navigate to that specific
uild I can see the list of changes on top level but not in the module.

Versions:
svn = 1.4.2
mvn = 2.0.7
java = 1.6.0_06